Improved brick-machine



DVID SMITH, OF NEIZVBURYP()RT,v MASSACHUSETTS.

i Letters .Patent No. 78,765, dated June 9, 1868.

IMPROVED BRICK-MACHINE.-

dige ttehulr farmi tr in time Entier@ ntrut imi making pnt at tigesmite.

cro'ALL WHQMIT MAY coNcnRN:

Be it known that I, `DAVID SMITH, of Newburyport, in the countyo-frEssex, and State of Massachusetts, have invented certainImprovements in Brick-MachineSg and I do hereby declare that thefollowing is a full and exact description thereof, reference being hadto the accompanying drawings, and to the letters of reference markedthereon, making part of this specification.

With reference to the drawings Figure 1 represents a perspective view ofa machine, showing `my improvements, a portion of the framework, 850.',being broken away, the better to show the workingparts, and a portion ofthe cylindrical case of the grinding and moulding-portion of the machinebeing removed 'to show the parts within.

`Figure 2 shows the arrangement of the moulds, so as to have a clearspace above for the material to he pressed'directlydownward into them aswell as outward radially, as shown in iig'. 1.

Figure 3 shows a sand-ease, arranged over the moulds Z, so that afterbeing lled, the moulds pass through sand with` the moulded brick, sothat the exposed parts become sanded to prevent sticking in the press,Sto.

. 4The three gear-wheels a b e serve to give movement to the various,operative parts through their respective shafts d ef. The driving-powermay be applied to .shaft drthrough the gear a, or otherwise, to ycauseit to revolve with its attached arms Zij kVandso drive the gears b c andtheir shafts ef. Or either of the shafts ef may be made lthe driver, ifpreferred. v 4

Around shaft oZis the case g, into 'which the material for bricks isput.V The arms Zz grind and stir the same, Aand by their inclined orscrew-shape press the material downward through a stationary perforatedplate or grating, z'. This'grating insures the passing of the materialwith a suicient degree of nencss to the arms j lc, which further stirandreduce it toda proper consistency for moulding.

The' arms j lc are attached to and revolve with the shaft d.

Just outside of arms jZc-s arranged an annular series oi` brick-moulds,Z, open at top and sides. Into these moulds Z the material is pressed bythe arms j 7c, the partj of which is in screw-blade form or angular,form topress downward ,into moulds Z, while the part/c has a spiral orcurved eccentric form, and operates at the same time to press thematerial outward into the moulds Z, more perfectly when they arrive insuccession at the side shown-in the foreground of the drawing andopposite to the presses hereinafter alluded to.

Thea'nnular series of moulds Z forms a larger circle than the case for4grinding up and pressing the material Vinto the moulds, so'that in theirrevolution they pass at one point entirely outside of the case or to auopen space afforded for the operation of the presses, hereinafterdescribed.

The series of moulds Z has an intermittent movement, each period f whichcorrespondsto or measures thedistance from centre 'to centre of theadjacent moulds.

And each mould, after being filled, stops in succession at a pointopposite to that where the arms j Zt press `closest to thermoulds.v 'Aseries of presses, m o, also arranged and moving in a circular track,has a correspending intermittent movement, and each press m o in theseries stops in its movement'directly against one of the moulds Z, alsoat rest, at the same instant.

Atthis same moment the follower n has a movement from a point within thetrack of moulds' l, toward one of the presses m, moving the mouldedbrick thereby from the mould into the press, and properly pressing'itwith the same movement. ,A l

.The mouldsZ and presses then pass along in the direction of the arrowsto the next point of rest and coincidence, and a cam, within the seriesof presses m o, acts on the movable back o of thevpress and forces thenew-formed and pressed brick,p, outgof the pr'ess; then, it rests on arim or table, g, fromwhich it may be taken by hand or an endless belt,or otherrautomatic carriage or stationary table may be arranged insteadto receive the brick as it leaves thepress. l i l The movable back o ispressed hack again by theintroductiou of the next brick, at a pointwhere the cam, which throws it ou t, is inoperative. The series ofmoulds Z receives its Vmovement from the. cranks of shafts e andfthrough pawls r s.

The-'series of" presses, or m o, the movable parts, receives'its, rotaryintermittent movement from the series of moulds Z, by means of the gearstand u connected to the series of moulds Z, and the series of presses,these. kwheels t and u playing into cach other.

` The arm v serves to give the follower n a movement up and down in theslide w, and this movement keeps the material scraped off, thatotherwise might adhere and accumulate, 'so as to give roughness to thebrick, and allows it to pass over the brick inward, preparatory to thepressing operation.

The slide w is operated with a reciprocating intermittent movement, soas, by the follower n, to move` the i moulded brick from the mould intothe press m, and press it by meansof a pin and slot, 5, in lever e, andthe of presses m o, constructed. and operating substantially asdescribed.

rods 2 and 3 embracing cranks on shaftf, and which operate said lever s.

The lever v receives its movement from the' crank :v of the shaft c,which it embraces and operates follower n through the crank-arms y.

The sand-case 4, iig. 3, furnishes sand to the surface of the mouldedbricks as they pass toward the press. l

The sand thus applied to the surface tends to prevent the brick fromadhering too tenaeiously to the press. The machinery may be made of ironentire, or the same, or other metals combined with wood, accordingto theconvenience or facilities of the maker.-

'lhus having described my improvements, what I claim as my invention,and desire to secure by Letters Patent, is as follows:

` Claims.

l. I claim the annular series of open moulds Z, operating' incombination with the armsj Ze, substantially as described.

2. The intermittent rotary series of presses m o, constructed andoperating in combinationA with the follower n, substantially asdescribed. q I f '3. The combination and arrangement of the annularseries of moulds Z, and the intermittent rotary series Witnesses:

D. N. B. Coram, Jr., IRAH D. SPAULDINe. r

DAVID SMITH.

